Which solution is more diluted? Solution 1:
1000 mL of water
60g of salt
Solution 2:
500 mL of water
60 g of salt
A. Solution 1
B. Solution 2
C. Both solutions have the same concentration

Where do homologous chromosomes exchange genetic material through crossing over?               a.  chlorophyll    b.  centrosomes    c.  centromeres    d.  chiasma

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

What are the seven economic and social goals?